Headache design effect

A couple years ago, I found some interesting pictures in the etapes magazine. These pictures really gave me a headache and burned my eyes. They were illustrated entirely by stripes and after looking at them for a while, I suddenly had a "brainache".
I would also like to hurt peoples brains, so I challenged myself to make the same.

As usual, it was harder than I thought !!!

I began vectorizing a picture to try to make the same effect. First I tried to add a layer of duplicated stripes on top of the vectorised picture. The result was not so bad but not really interesting and I didn't have a headache yet. After so many different investigations on how I could do it, I finally found a meticulous way to get "the headache effect".

Being very meticulous, here's the step by step :

• Vectorise something
• Expand all
• Make a duplication of rectangle(or stripes you expand)
• Divide all
• Select and add a border on intersected shapes
• Delete old artefacts
• Choose adequat backround color

Warning! While performing this effect, you may have a headache too.

Here is the final result